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Freezing, accelerating, and slowing directed currents in real time with superimposed driven lattices

Mukhopadhyay, A.K. and Liebchen, B. and Wulf, T. and Schmelcher, P. (2016):
Freezing, accelerating, and slowing directed currents in real time with superimposed driven lattices.
In: Phys. Rev. E - Stat. Nonlinear, Soft Matter Phys., pp. 052219, 93, (5), ISSN 15502376,
DOI: 10.1103/PhysRevE.93.052219,
[Article]

Abstract

We provide a generic scheme offering real-time control of directed particle transport using superimposed driven lattices. This scheme allows one to accelerate, slow, and freeze the transport on demand by switching one of the lattices subsequently on and off. The underlying physical mechanism hinges on a systematic opening and closing of channels between transporting and nontransporting phase space structures upon switching and exploits cantori structures which generate memory effects in the population of these structures. Our results should allow for real-time control of cold thermal atomic ensembles in optical lattices but might also be useful as a design principle for targeted delivery of molecules or colloids in optical devices.

Item Type: Article
Erschienen: 2016
Creators: Mukhopadhyay, A.K. and Liebchen, B. and Wulf, T. and Schmelcher, P.
Title: Freezing, accelerating, and slowing directed currents in real time with superimposed driven lattices
Language: English
Abstract:

We provide a generic scheme offering real-time control of directed particle transport using superimposed driven lattices. This scheme allows one to accelerate, slow, and freeze the transport on demand by switching one of the lattices subsequently on and off. The underlying physical mechanism hinges on a systematic opening and closing of channels between transporting and nontransporting phase space structures upon switching and exploits cantori structures which generate memory effects in the population of these structures. Our results should allow for real-time control of cold thermal atomic ensembles in optical lattices but might also be useful as a design principle for targeted delivery of molecules or colloids in optical devices.

Journal or Publication Title: Phys. Rev. E - Stat. Nonlinear, Soft Matter Phys.
Volume: 93
Number: 5
Divisions: 05 Department of Physics
05 Department of Physics > Institute for condensed matter physics
Date Deposited: 27 May 2019 13:33
DOI: 10.1103/PhysRevE.93.052219
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